- Don't add the media-specific header until right before transmission
[reactos.git] / reactos / drivers / network / tcpip / datalink / lan.c
1 /*
2 * COPYRIGHT: See COPYING in the top level directory
3 * PROJECT: ReactOS TCP/IP protocol driver
4 * FILE: datalink/lan.c
5 * PURPOSE: Local Area Network media routines
6 * PROGRAMMERS: Casper S. Hornstrup (chorns@users.sourceforge.net)
7 * REVISIONS:
8 * CSH 01/08-2000 Created
9 */
10
11 #include "precomp.h"
12
13 UINT TransferDataCalled = 0;
14 UINT TransferDataCompleteCalled = 0;
15 UINT LanReceiveWorkerCalled = 0;
16 BOOLEAN LanReceiveWorkerBusy = FALSE;
17
18 #define CCS_ROOT L"\\Registry\\Machine\\SYSTEM\\CurrentControlSet"
19 #define TCPIP_GUID L"{4D36E972-E325-11CE-BFC1-08002BE10318}"
20
21 #define NGFP(_Packet) \
22 { \
23 PVOID _Header; \
24 ULONG _ContigSize, _TotalSize; \
25 PNDIS_BUFFER _NdisBuffer; \
26 \
27 TI_DbgPrint(MID_TRACE,("Checking Packet %x\n", _Packet)); \
28 NdisGetFirstBufferFromPacket(_Packet, \
29 &_NdisBuffer, \
30 &_Header, \
31 &_ContigSize, \
32 &_TotalSize); \
33 TI_DbgPrint(MID_TRACE,("NdisBuffer: %x\n", _NdisBuffer)); \
34 TI_DbgPrint(MID_TRACE,("Header : %x\n", _Header)); \
35 TI_DbgPrint(MID_TRACE,("ContigSize: %x\n", _ContigSize)); \
36 TI_DbgPrint(MID_TRACE,("TotalSize : %x\n", _TotalSize)); \
37 }
38
39 typedef struct _LAN_WQ_ITEM {
40 LIST_ENTRY ListEntry;
41 PNDIS_PACKET Packet;
42 PLAN_ADAPTER Adapter;
43 UINT BytesTransferred;
44 } LAN_WQ_ITEM, *PLAN_WQ_ITEM;
45
46 NDIS_HANDLE NdisProtocolHandle = (NDIS_HANDLE)NULL;
47 BOOLEAN ProtocolRegistered = FALSE;
48 LIST_ENTRY AdapterListHead;
49 KSPIN_LOCK AdapterListLock;
50
51 NDIS_STATUS NDISCall(
52 PLAN_ADAPTER Adapter,
53 NDIS_REQUEST_TYPE Type,
54 NDIS_OID OID,
55 PVOID Buffer,
56 UINT Length)
57 /*
58 * FUNCTION: Send a request to NDIS
59 * ARGUMENTS:
60 * Adapter = Pointer to a LAN_ADAPTER structure
61 * Type = Type of request (Set or Query)
62 * OID = Value to be set/queried for
63 * Buffer = Pointer to a buffer to use
64 * Length = Number of bytes in Buffer
65 * RETURNS:
66 * Status of operation
67 */
68 {
69 NDIS_REQUEST Request;
70 NDIS_STATUS NdisStatus;
71
72 Request.RequestType = Type;
73 if (Type == NdisRequestSetInformation) {
74 Request.DATA.SET_INFORMATION.Oid = OID;
75 Request.DATA.SET_INFORMATION.InformationBuffer = Buffer;
76 Request.DATA.SET_INFORMATION.InformationBufferLength = Length;
77 } else {
78 Request.DATA.QUERY_INFORMATION.Oid = OID;
79 Request.DATA.QUERY_INFORMATION.InformationBuffer = Buffer;
80 Request.DATA.QUERY_INFORMATION.InformationBufferLength = Length;
81 }
82
83 if (Adapter->State != LAN_STATE_RESETTING) {
84 NdisRequest(&NdisStatus, Adapter->NdisHandle, &Request);
85 } else {
86 NdisStatus = NDIS_STATUS_NOT_ACCEPTED;
87 }
88
89 /* Wait for NDIS to complete the request */
90 if (NdisStatus == NDIS_STATUS_PENDING) {
91 KeWaitForSingleObject(&Adapter->Event,
92 UserRequest,
93 KernelMode,
94 FALSE,
95 NULL);
96 NdisStatus = Adapter->NdisStatus;
97 }
98
99 return NdisStatus;
100 }
101
102
103 VOID FreeAdapter(
104 PLAN_ADAPTER Adapter)
105 /*
106 * FUNCTION: Frees memory for a LAN_ADAPTER structure
107 * ARGUMENTS:
108 * Adapter = Pointer to LAN_ADAPTER structure to free
109 */
110 {
111 exFreePool(Adapter);
112 }
113
114
115 NTSTATUS TcpipLanGetDwordOid
116 ( PIP_INTERFACE Interface,
117 NDIS_OID Oid,
118 PULONG Result ) {
119 /* Get maximum frame size */
120 if( Interface->Context ) {
121 return NDISCall((PLAN_ADAPTER)Interface->Context,
122 NdisRequestQueryInformation,
123 Oid,
124 Result,
125 sizeof(ULONG));
126 } else switch( Oid ) { /* Loopback Case */
127 case OID_GEN_HARDWARE_STATUS:
128 *Result = NdisHardwareStatusReady;
129 return STATUS_SUCCESS;
130
131 default:
132 return STATUS_INVALID_PARAMETER;
133 }
134 }
135
136
137 VOID NTAPI ProtocolOpenAdapterComplete(
138 NDIS_HANDLE BindingContext,
139 NDIS_STATUS Status,
140 NDIS_STATUS OpenErrorStatus)
141 /*
142 * FUNCTION: Called by NDIS to complete opening of an adapter
143 * ARGUMENTS:
144 * BindingContext = Pointer to a device context (LAN_ADAPTER)
145 * Status = Status of the operation
146 * OpenErrorStatus = Additional status information
147 */
148 {
149 PLAN_ADAPTER Adapter = (PLAN_ADAPTER)BindingContext;
150
151 TI_DbgPrint(DEBUG_DATALINK, ("Called.\n"));
152
153 Adapter->NdisStatus = Status;
154
155 KeSetEvent(&Adapter->Event, 0, FALSE);
156 }
157
158
159 VOID NTAPI ProtocolCloseAdapterComplete(
160 NDIS_HANDLE BindingContext,
161 NDIS_STATUS Status)
162 /*
163 * FUNCTION: Called by NDIS to complete closing an adapter
164 * ARGUMENTS:
165 * BindingContext = Pointer to a device context (LAN_ADAPTER)
166 * Status = Status of the operation
167 */
168 {
169 PLAN_ADAPTER Adapter = (PLAN_ADAPTER)BindingContext;
170
171 TI_DbgPrint(DEBUG_DATALINK, ("Called.\n"));
172
173 Adapter->NdisStatus = Status;
174
175 KeSetEvent(&Adapter->Event, 0, FALSE);
176 }
177
178
179 VOID NTAPI ProtocolResetComplete(
180 NDIS_HANDLE BindingContext,
181 NDIS_STATUS Status)
182 /*
183 * FUNCTION: Called by NDIS to complete resetting an adapter
184 * ARGUMENTS:
185 * BindingContext = Pointer to a device context (LAN_ADAPTER)
186 * Status = Status of the operation
187 */
188 {
189 PLAN_ADAPTER Adapter = (PLAN_ADAPTER)BindingContext;
190
191 TI_DbgPrint(DEBUG_DATALINK, ("Called.\n"));
192
193 Adapter->NdisStatus = Status;
194
195 KeSetEvent(&Adapter->Event, 0, FALSE);
196 }
197
198
199 VOID NTAPI ProtocolRequestComplete(
200 NDIS_HANDLE BindingContext,
201 PNDIS_REQUEST NdisRequest,
202 NDIS_STATUS Status)
203 /*
204 * FUNCTION: Called by NDIS to complete a request
205 * ARGUMENTS:
206 * BindingContext = Pointer to a device context (LAN_ADAPTER)
207 * NdisRequest = Pointer to an object describing the request
208 * Status = Status of the operation
209 */
210 {
211 PLAN_ADAPTER Adapter = (PLAN_ADAPTER)BindingContext;
212
213 TI_DbgPrint(DEBUG_DATALINK, ("Called.\n"));
214
215 /* Save status of request and signal an event */
216 Adapter->NdisStatus = Status;
217
218 KeSetEvent(&Adapter->Event, 0, FALSE);
219 }
220
221
222 VOID NTAPI ProtocolSendComplete(
223 NDIS_HANDLE BindingContext,
224 PNDIS_PACKET Packet,
225 NDIS_STATUS Status)
226 /*
227 * FUNCTION: Called by NDIS to complete sending process
228 * ARGUMENTS:
229 * BindingContext = Pointer to a device context (LAN_ADAPTER)
230 * Packet = Pointer to a packet descriptor
231 * Status = Status of the operation
232 */
233 {
234 FreeNdisPacket(Packet);
235 }
236
237 VOID LanReceiveWorker( PVOID Context ) {
238 UINT PacketType;
239 PLAN_WQ_ITEM WorkItem = (PLAN_WQ_ITEM)Context;
240 PNDIS_PACKET Packet;
241 PLAN_ADAPTER Adapter;
242 UINT BytesTransferred;
243 PNDIS_BUFFER NdisBuffer;
244 IP_PACKET IPPacket;
245
246 TI_DbgPrint(DEBUG_DATALINK, ("Called.\n"));
247
248 Packet = WorkItem->Packet;
249 Adapter = WorkItem->Adapter;
250 BytesTransferred = WorkItem->BytesTransferred;
251
252 exFreePool(WorkItem);
253
254 IPInitializePacket(&IPPacket, 0);
255
256 IPPacket.NdisPacket = Packet;
257
258 NdisGetFirstBufferFromPacket(Packet,
259 &NdisBuffer,
260 &IPPacket.Header,
261 &IPPacket.ContigSize,
262 &IPPacket.TotalSize);
263
264 IPPacket.ContigSize = IPPacket.TotalSize = BytesTransferred;
265 /* Determine which upper layer protocol that should receive
266 this packet and pass it to the correct receive handler */
267
268 TI_DbgPrint(MID_TRACE,
269 ("ContigSize: %d, TotalSize: %d, BytesTransferred: %d\n",
270 IPPacket.ContigSize, IPPacket.TotalSize,
271 BytesTransferred));
272
273 PacketType = PC(IPPacket.NdisPacket)->PacketType;
274 IPPacket.Position = 0;
275
276 TI_DbgPrint
277 (DEBUG_DATALINK,
278 ("Ether Type = %x ContigSize = %d Total = %d\n",
279 PacketType, IPPacket.ContigSize, IPPacket.TotalSize));
280
281 switch (PacketType) {
282 case ETYPE_IPv4:
283 case ETYPE_IPv6:
284 TI_DbgPrint(MID_TRACE,("Received IP Packet\n"));
285 IPReceive(Adapter->Context, &IPPacket);
286 break;
287 case ETYPE_ARP:
288 TI_DbgPrint(MID_TRACE,("Received ARP Packet\n"));
289 ARPReceive(Adapter->Context, &IPPacket);
290 default:
291 IPPacket.Free(&IPPacket);
292 break;
293 }
294
295 FreeNdisPacket( Packet );
296 }
297
298 VOID LanSubmitReceiveWork(
299 NDIS_HANDLE BindingContext,
300 PNDIS_PACKET Packet,
301 NDIS_STATUS Status,
302 UINT BytesTransferred) {
303 PLAN_WQ_ITEM WQItem = exAllocatePool(NonPagedPool, sizeof(LAN_WQ_ITEM));
304 PLAN_ADAPTER Adapter = (PLAN_ADAPTER)BindingContext;
305
306 TI_DbgPrint(DEBUG_DATALINK,("called\n"));
307
308 if (!WQItem) return;
309
310 WQItem->Packet = Packet;
311 WQItem->Adapter = Adapter;
312 WQItem->BytesTransferred = BytesTransferred;
313
314 if (!ChewCreate( LanReceiveWorker, WQItem ))
315 exFreePool(WQItem);
316 }
317
318 VOID NTAPI ProtocolTransferDataComplete(
319 NDIS_HANDLE BindingContext,
320 PNDIS_PACKET Packet,
321 NDIS_STATUS Status,
322 UINT BytesTransferred)
323 /*
324 * FUNCTION: Called by NDIS to complete reception of data
325 * ARGUMENTS:
326 * BindingContext = Pointer to a device context (LAN_ADAPTER)
327 * Packet = Pointer to a packet descriptor
328 * Status = Status of the operation
329 * BytesTransferred = Number of bytes transferred
330 * NOTES:
331 * If the packet was successfully received, determine the protocol
332 * type and pass it to the correct receive handler
333 */
334 {
335 ASSERT(KeGetCurrentIrql() == DISPATCH_LEVEL);
336
337 TI_DbgPrint(DEBUG_DATALINK,("called\n"));
338
339 TransferDataCompleteCalled++;
340 ASSERT(TransferDataCompleteCalled <= TransferDataCalled);
341
342 if( Status != NDIS_STATUS_SUCCESS ) return;
343
344 LanSubmitReceiveWork( BindingContext, Packet, Status, BytesTransferred );
345 }
346
347 NDIS_STATUS NTAPI ProtocolReceive(
348 NDIS_HANDLE BindingContext,
349 NDIS_HANDLE MacReceiveContext,
350 PVOID HeaderBuffer,
351 UINT HeaderBufferSize,
352 PVOID LookaheadBuffer,
353 UINT LookaheadBufferSize,
354 UINT PacketSize)
355 /*
356 * FUNCTION: Called by NDIS when a packet has been received on the physical link
357 * ARGUMENTS:
358 * BindingContext = Pointer to a device context (LAN_ADAPTER)
359 * MacReceiveContext = Handle used by underlying NIC driver
360 * HeaderBuffer = Pointer to a buffer containing the packet header
361 * HeaderBufferSize = Number of bytes in HeaderBuffer
362 * LookaheadBuffer = Pointer to a buffer containing buffered packet data
363 * LookaheadBufferSize = Size of LookaheadBuffer. May be less than asked for
364 * PacketSize = Overall size of the packet (not including header)
365 * RETURNS:
366 * Status of operation
367 */
368 {
369 USHORT EType;
370 UINT PacketType, BytesTransferred;
371 UINT temp;
372 IP_PACKET IPPacket;
373 PCHAR BufferData;
374 NDIS_STATUS NdisStatus;
375 PNDIS_PACKET NdisPacket;
376 PLAN_ADAPTER Adapter = (PLAN_ADAPTER)BindingContext;
377 PETH_HEADER EHeader = (PETH_HEADER)HeaderBuffer;
378
379 TI_DbgPrint(DEBUG_DATALINK, ("Called. (packetsize %d)\n",PacketSize));
380
381 if (Adapter->State != LAN_STATE_STARTED) {
382 TI_DbgPrint(DEBUG_DATALINK, ("Adapter is stopped.\n"));
383 return NDIS_STATUS_NOT_ACCEPTED;
384 }
385
386 if (HeaderBufferSize < Adapter->HeaderSize) {
387 TI_DbgPrint(DEBUG_DATALINK, ("Runt frame received.\n"));
388 return NDIS_STATUS_NOT_ACCEPTED;
389 }
390
391 if (Adapter->Media == NdisMedium802_3) {
392 /* Ethernet and IEEE 802.3 frames can be destinguished by
393 looking at the IEEE 802.3 length field. This field is
394 less than or equal to 1500 for a valid IEEE 802.3 frame
395 and larger than 1500 is it's a valid EtherType value.
396 See RFC 1122, section 2.3.3 for more information */
397 /* FIXME: Test for Ethernet and IEEE 802.3 frame */
398 if (((EType = EHeader->EType) != ETYPE_IPv4) && (EType != ETYPE_ARP)) {
399 TI_DbgPrint(DEBUG_DATALINK, ("Not IP or ARP frame. EtherType (0x%X).\n", EType));
400 return NDIS_STATUS_NOT_ACCEPTED;
401 }
402 /* We use EtherType constants to destinguish packet types */
403 PacketType = EType;
404 } else {
405 TI_DbgPrint(MIN_TRACE, ("Unsupported media.\n"));
406 /* FIXME: Support other medias */
407 return NDIS_STATUS_NOT_ACCEPTED;
408 }
409
410 /* Get a transfer data packet */
411
412 TI_DbgPrint(DEBUG_DATALINK, ("Adapter: %x (MTU %d)\n",
413 Adapter, Adapter->MTU));
414
415 NdisStatus = AllocatePacketWithBuffer( &NdisPacket, NULL,
416 PacketSize );
417 if( NdisStatus != NDIS_STATUS_SUCCESS ) {
418 return NDIS_STATUS_NOT_ACCEPTED;
419 }
420
421 PC(NdisPacket)->PacketType = PacketType;
422
423 TI_DbgPrint(DEBUG_DATALINK, ("pretransfer LookaheadBufferSize %d packsize %d\n",LookaheadBufferSize,PacketSize));
424
425 GetDataPtr( NdisPacket, 0, &BufferData, &temp );
426
427 IPPacket.NdisPacket = NdisPacket;
428 IPPacket.Position = 0;
429
430 TransferDataCalled++;
431
432 if (LookaheadBufferSize == PacketSize)
433 {
434 /* Optimized code path for packets that are fully contained in
435 * the lookahead buffer. */
436 NdisCopyLookaheadData(BufferData,
437 LookaheadBuffer,
438 LookaheadBufferSize,
439 Adapter->MacOptions);
440 }
441 else
442 {
443 NdisTransferData(&NdisStatus, Adapter->NdisHandle,
444 MacReceiveContext, 0, PacketSize,
445 NdisPacket, &BytesTransferred);
446 }
447 TI_DbgPrint(DEBUG_DATALINK, ("Calling complete\n"));
448
449 if (NdisStatus != NDIS_STATUS_PENDING)
450 ProtocolTransferDataComplete(BindingContext,
451 NdisPacket,
452 NdisStatus,
453 PacketSize);
454
455 TI_DbgPrint(DEBUG_DATALINK, ("leaving\n"));
456
457 return NDIS_STATUS_SUCCESS;
458 }
459
460
461 VOID NTAPI ProtocolReceiveComplete(
462 NDIS_HANDLE BindingContext)
463 /*
464 * FUNCTION: Called by NDIS when we're done receiving data
465 * ARGUMENTS:
466 * BindingContext = Pointer to a device context (LAN_ADAPTER)
467 */
468 {
469 TI_DbgPrint(DEBUG_DATALINK, ("Called.\n"));
470 }
471
472
473 VOID NTAPI ProtocolStatus(
474 NDIS_HANDLE BindingContext,
475 NDIS_STATUS GeneralStatus,
476 PVOID StatusBuffer,
477 UINT StatusBufferSize)
478 /*
479 * FUNCTION: Called by NDIS when the underlying driver has changed state
480 * ARGUMENTS:
481 * BindingContext = Pointer to a device context (LAN_ADAPTER)
482 * GeneralStatus = A general status code
483 * StatusBuffer = Pointer to a buffer with medium-specific data
484 * StatusBufferSize = Number of bytes in StatusBuffer
485 */
486 {
487 PLAN_ADAPTER Adapter = BindingContext;
488
489 TI_DbgPrint(DEBUG_DATALINK, ("Called.\n"));
490
491 switch(GeneralStatus)
492 {
493 case NDIS_STATUS_MEDIA_CONNECT:
494 DbgPrint("NDIS_STATUS_MEDIA_CONNECT\n");
495 break;
496
497 case NDIS_STATUS_MEDIA_DISCONNECT:
498 DbgPrint("NDIS_STATUS_MEDIA_DISCONNECT\n");
499 break;
500
501 case NDIS_STATUS_RESET_START:
502 Adapter->State = LAN_STATE_RESETTING;
503 break;
504
505 case NDIS_STATUS_RESET_END:
506 Adapter->State = LAN_STATE_STARTED;
507 break;
508
509 default:
510 DbgPrint("Unhandled status: %x", GeneralStatus);
511 break;
512 }
513 }
514
515 NDIS_STATUS NTAPI
516 ProtocolPnPEvent(
517 NDIS_HANDLE NdisBindingContext,
518 PNET_PNP_EVENT PnPEvent)
519 {
520 switch(PnPEvent->NetEvent)
521 {
522 case NetEventSetPower:
523 DbgPrint("Device transitioned to power state %ld\n", PnPEvent->Buffer);
524 return NDIS_STATUS_SUCCESS;
525
526 case NetEventQueryPower:
527 DbgPrint("Device wants to go into power state %ld\n", PnPEvent->Buffer);
528 return NDIS_STATUS_SUCCESS;
529
530 case NetEventQueryRemoveDevice:
531 DbgPrint("Device is about to be removed\n");
532 return NDIS_STATUS_SUCCESS;
533
534 case NetEventCancelRemoveDevice:
535 DbgPrint("Device removal cancelled\n");
536 return NDIS_STATUS_SUCCESS;
537
538 default:
539 DbgPrint("Unhandled event type: %ld\n", PnPEvent->NetEvent);
540 return NDIS_STATUS_SUCCESS;
541 }
542 }
543
544 VOID NTAPI ProtocolStatusComplete(
545 NDIS_HANDLE NdisBindingContext)
546 /*
547 * FUNCTION: Called by NDIS when a status-change has occurred
548 * ARGUMENTS:
549 * BindingContext = Pointer to a device context (LAN_ADAPTER)
550 */
551 {
552 TI_DbgPrint(DEBUG_DATALINK, ("Called.\n"));
553 }
554
555 VOID NTAPI ProtocolBindAdapter(
556 OUT PNDIS_STATUS Status,
557 IN NDIS_HANDLE BindContext,
558 IN PNDIS_STRING DeviceName,
559 IN PVOID SystemSpecific1,
560 IN PVOID SystemSpecific2)
561 /*
562 * FUNCTION: Called by NDIS during NdisRegisterProtocol to set up initial
563 * bindings, and periodically thereafer as new adapters come online
564 * ARGUMENTS:
565 * Status: Return value to NDIS
566 * BindContext: Handle provided by NDIS to track pending binding operations
567 * DeviceName: Name of the miniport device to bind to
568 * SystemSpecific1: Pointer to a registry path with protocol-specific configuration information
569 * SystemSpecific2: Unused & must not be touched
570 */
571 {
572 /* XXX confirm that this is still true, or re-word the following comment */
573 /* we get to ignore BindContext because we will never pend an operation with NDIS */
574 TI_DbgPrint(DEBUG_DATALINK, ("Called with registry path %wZ for %wZ\n", SystemSpecific1, DeviceName));
575 *Status = LANRegisterAdapter(DeviceName, SystemSpecific1);
576 }
577
578
579 VOID LANTransmit(
580 PVOID Context,
581 PNDIS_PACKET NdisPacket,
582 UINT Offset,
583 PVOID LinkAddress,
584 USHORT Type)
585 /*
586 * FUNCTION: Transmits a packet
587 * ARGUMENTS:
588 * Context = Pointer to context information (LAN_ADAPTER)
589 * NdisPacket = Pointer to NDIS packet to send
590 * Offset = Offset in packet where data starts
591 * LinkAddress = Pointer to link address of destination (NULL = broadcast)
592 * Type = LAN protocol type (LAN_PROTO_*)
593 */
594 {
595 NDIS_STATUS NdisStatus;
596 PETH_HEADER EHeader;
597 PCHAR Data, OldData;
598 UINT Size, OldSize;
599 PLAN_ADAPTER Adapter = (PLAN_ADAPTER)Context;
600 KIRQL OldIrql;
601 PNDIS_PACKET XmitPacket;
602
603 TI_DbgPrint(DEBUG_DATALINK,
604 ("Called( NdisPacket %x, Offset %d, Adapter %x )\n",
605 NdisPacket, Offset, Adapter));
606
607 if (Adapter->State != LAN_STATE_STARTED) {
608 (*PC(NdisPacket)->DLComplete)(PC(NdisPacket)->Context, NdisPacket, NDIS_STATUS_NOT_ACCEPTED);
609 return;
610 }
611
612 TI_DbgPrint(DEBUG_DATALINK,
613 ("Adapter Address [%02x %02x %02x %02x %02x %02x]\n",
614 Adapter->HWAddress[0] & 0xff,
615 Adapter->HWAddress[1] & 0xff,
616 Adapter->HWAddress[2] & 0xff,
617 Adapter->HWAddress[3] & 0xff,
618 Adapter->HWAddress[4] & 0xff,
619 Adapter->HWAddress[5] & 0xff));
620
621 GetDataPtr( NdisPacket, 0, &OldData, &OldSize );
622
623 NdisStatus = AllocatePacketWithBuffer(&XmitPacket, NULL, OldSize + Adapter->HeaderSize);
624 if (NdisStatus != NDIS_STATUS_SUCCESS) {
625 (*PC(NdisPacket)->DLComplete)(PC(NdisPacket)->Context, NdisPacket, NDIS_STATUS_RESOURCES);
626 return;
627 }
628
629 GetDataPtr(XmitPacket, 0, &Data, &Size);
630
631 RtlCopyMemory(Data + Adapter->HeaderSize, OldData, OldSize);
632
633 (*PC(NdisPacket)->DLComplete)(PC(NdisPacket)->Context, NdisPacket, NDIS_STATUS_SUCCESS);
634
635 switch (Adapter->Media) {
636 case NdisMedium802_3:
637 EHeader = (PETH_HEADER)Data;
638
639 if (LinkAddress) {
640 /* Unicast address */
641 RtlCopyMemory(EHeader->DstAddr, LinkAddress, IEEE_802_ADDR_LENGTH);
642 } else {
643 /* Broadcast address */
644 RtlFillMemory(EHeader->DstAddr, IEEE_802_ADDR_LENGTH, 0xFF);
645 }
646
647 RtlCopyMemory(EHeader->SrcAddr, Adapter->HWAddress, IEEE_802_ADDR_LENGTH);
648
649 switch (Type) {
650 case LAN_PROTO_IPv4:
651 EHeader->EType = ETYPE_IPv4;
652 break;
653 case LAN_PROTO_ARP:
654 EHeader->EType = ETYPE_ARP;
655 break;
656 case LAN_PROTO_IPv6:
657 EHeader->EType = ETYPE_IPv6;
658 break;
659 default:
660 ASSERT(FALSE);
661 return;
662 }
663 break;
664
665 default:
666 /* FIXME: Support other medias */
667 break;
668 }
669
670 TI_DbgPrint( MID_TRACE, ("LinkAddress: %x\n", LinkAddress));
671 if( LinkAddress ) {
672 TI_DbgPrint
673 ( MID_TRACE,
674 ("Link Address [%02x %02x %02x %02x %02x %02x]\n",
675 ((PCHAR)LinkAddress)[0] & 0xff,
676 ((PCHAR)LinkAddress)[1] & 0xff,
677 ((PCHAR)LinkAddress)[2] & 0xff,
678 ((PCHAR)LinkAddress)[3] & 0xff,
679 ((PCHAR)LinkAddress)[4] & 0xff,
680 ((PCHAR)LinkAddress)[5] & 0xff));
681 }
682
683 if (Adapter->MTU < Size) {
684 /* This is NOT a pointer. MSDN explicitly says so. */
685 NDIS_PER_PACKET_INFO_FROM_PACKET(NdisPacket,
686 TcpLargeSendPacketInfo) = (PVOID)((ULONG)Adapter->MTU);
687 }
688
689 TcpipAcquireSpinLock( &Adapter->Lock, &OldIrql );
690 TI_DbgPrint(MID_TRACE, ("NdisSend\n"));
691 NdisSend(&NdisStatus, Adapter->NdisHandle, XmitPacket);
692 TI_DbgPrint(MID_TRACE, ("NdisSend %s\n",
693 NdisStatus == NDIS_STATUS_PENDING ?
694 "Pending" : "Complete"));
695 TcpipReleaseSpinLock( &Adapter->Lock, OldIrql );
696
697 /* I had a talk with vizzini: these really ought to be here.
698 * we're supposed to see these completed by ndis *only* when
699 * status_pending is returned. Note that this is different from
700 * the situation with IRPs. */
701 if (NdisStatus != NDIS_STATUS_PENDING)
702 ProtocolSendComplete((NDIS_HANDLE)Context, XmitPacket, NdisStatus);
703 }
704
705 static NTSTATUS
706 OpenRegistryKey( PNDIS_STRING RegistryPath, PHANDLE RegHandle ) {
707 OBJECT_ATTRIBUTES Attributes;
708 NTSTATUS Status;
709
710 InitializeObjectAttributes(&Attributes, RegistryPath, OBJ_CASE_INSENSITIVE, 0, 0);
711 Status = ZwOpenKey(RegHandle, KEY_ALL_ACCESS, &Attributes);
712 return Status;
713 }
714
715 static NTSTATUS ReadStringFromRegistry( HANDLE RegHandle,
716 PWCHAR RegistryValue,
717 PUNICODE_STRING String ) {
718 UNICODE_STRING ValueName;
719 UNICODE_STRING UnicodeString;
720 NTSTATUS Status;
721 ULONG ResultLength;
722 UCHAR buf[1024];
723 PKEY_VALUE_PARTIAL_INFORMATION Information = (PKEY_VALUE_PARTIAL_INFORMATION)buf;
724
725 RtlInitUnicodeString(&ValueName, RegistryValue);
726 Status =
727 ZwQueryValueKey(RegHandle,
728 &ValueName,
729 KeyValuePartialInformation,
730 Information,
731 sizeof(buf),
732 &ResultLength);
733
734 if (!NT_SUCCESS(Status))
735 return Status;
736 /* IP address is stored as a REG_MULTI_SZ - we only pay attention to the first one though */
737 TI_DbgPrint(MIN_TRACE, ("Information DataLength: 0x%x\n", Information->DataLength));
738
739 UnicodeString.Buffer = (PWCHAR)&Information->Data;
740 UnicodeString.Length = Information->DataLength - sizeof(WCHAR);
741 UnicodeString.MaximumLength = Information->DataLength;
742
743 String->Buffer =
744 (PWCHAR)ExAllocatePool( NonPagedPool,
745 UnicodeString.MaximumLength + sizeof(WCHAR) );
746
747 if( !String->Buffer ) return STATUS_NO_MEMORY;
748
749 String->MaximumLength = UnicodeString.MaximumLength;
750 RtlCopyUnicodeString( String, &UnicodeString );
751
752 return STATUS_SUCCESS;
753 }
754
755 /*
756 * Utility to copy and append two unicode strings.
757 *
758 * IN OUT PUNICODE_STRING ResultFirst -> First string and result
759 * IN PUNICODE_STRING Second -> Second string to append
760 * IN BOOL Deallocate -> TRUE: Deallocate First string before
761 * overwriting.
762 *
763 * Returns NTSTATUS.
764 */
765
766 NTSTATUS NTAPI AppendUnicodeString(PUNICODE_STRING ResultFirst,
767 PUNICODE_STRING Second,
768 BOOLEAN Deallocate) {
769 NTSTATUS Status;
770 UNICODE_STRING Ustr = *ResultFirst;
771 PWSTR new_string = ExAllocatePoolWithTag
772 (PagedPool,
773 (ResultFirst->Length + Second->Length + sizeof(WCHAR)), TAG_STRING);
774 if( !new_string ) {
775 return STATUS_NO_MEMORY;
776 }
777 memcpy( new_string, ResultFirst->Buffer, ResultFirst->Length );
778 memcpy( new_string + ResultFirst->Length / sizeof(WCHAR),
779 Second->Buffer, Second->Length );
780 if( Deallocate ) RtlFreeUnicodeString(ResultFirst);
781 ResultFirst->Length = Ustr.Length + Second->Length;
782 ResultFirst->MaximumLength = ResultFirst->Length;
783 new_string[ResultFirst->Length / sizeof(WCHAR)] = 0;
784 Status = RtlCreateUnicodeString(ResultFirst,new_string) ?
785 STATUS_SUCCESS : STATUS_NO_MEMORY;
786 ExFreePool(new_string);
787 return Status;
788 }
789
790 static NTSTATUS CheckForDeviceDesc( PUNICODE_STRING EnumKeyName,
791 PUNICODE_STRING TargetKeyName,
792 PUNICODE_STRING Name,
793 PUNICODE_STRING DeviceDesc ) {
794 UNICODE_STRING RootDevice = { 0, 0, NULL }, LinkageKeyName = { 0, 0, NULL };
795 UNICODE_STRING DescKeyName = { 0, 0, NULL }, Linkage = { 0, 0, NULL };
796 UNICODE_STRING BackSlash = { 0, 0, NULL };
797 HANDLE DescKey = NULL, LinkageKey = NULL;
798 NTSTATUS Status;
799
800 TI_DbgPrint(DEBUG_DATALINK,("EnumKeyName %wZ\n", EnumKeyName));
801
802 RtlInitUnicodeString(&BackSlash, L"\\");
803 RtlInitUnicodeString(&Linkage, L"\\Linkage");
804
805 RtlInitUnicodeString(&DescKeyName, L"");
806 AppendUnicodeString( &DescKeyName, EnumKeyName, FALSE );
807 AppendUnicodeString( &DescKeyName, &BackSlash, TRUE );
808 AppendUnicodeString( &DescKeyName, TargetKeyName, TRUE );
809
810 RtlInitUnicodeString(&LinkageKeyName, L"");
811 AppendUnicodeString( &LinkageKeyName, &DescKeyName, FALSE );
812 AppendUnicodeString( &LinkageKeyName, &Linkage, TRUE );
813
814 Status = OpenRegistryKey( &LinkageKeyName, &LinkageKey );
815 if( !NT_SUCCESS(Status) ) goto cleanup;
816
817 Status = ReadStringFromRegistry( LinkageKey, L"RootDevice", &RootDevice );
818 if( !NT_SUCCESS(Status) ) goto cleanup;
819
820 if( RtlCompareUnicodeString( &RootDevice, Name, TRUE ) == 0 ) {
821 Status = OpenRegistryKey( &DescKeyName, &DescKey );
822 if( !NT_SUCCESS(Status) ) goto cleanup;
823
824 Status = ReadStringFromRegistry( DescKey, L"DriverDesc", DeviceDesc );
825 if( !NT_SUCCESS(Status) ) goto cleanup;
826
827 TI_DbgPrint(DEBUG_DATALINK,("ADAPTER DESC: %wZ\n", DeviceDesc));
828 } else Status = STATUS_UNSUCCESSFUL;
829
830 cleanup:
831 RtlFreeUnicodeString( &RootDevice );
832 RtlFreeUnicodeString( &LinkageKeyName );
833 RtlFreeUnicodeString( &DescKeyName );
834 if( LinkageKey ) NtClose( LinkageKey );
835 if( DescKey ) NtClose( DescKey );
836
837 TI_DbgPrint(DEBUG_DATALINK,("Returning %x\n", Status));
838
839 return Status;
840 }
841
842 static NTSTATUS FindDeviceDescForAdapter( PUNICODE_STRING Name,
843 PUNICODE_STRING DeviceDesc ) {
844 UNICODE_STRING EnumKeyName, TargetKeyName;
845 HANDLE EnumKey;
846 NTSTATUS Status;
847 ULONG i;
848 KEY_BASIC_INFORMATION *Kbio =
849 ExAllocatePool(NonPagedPool, sizeof(KEY_BASIC_INFORMATION));
850 ULONG KbioLength = sizeof(KEY_BASIC_INFORMATION), ResultLength;
851
852 RtlInitUnicodeString( DeviceDesc, NULL );
853
854 if( !Kbio ) return STATUS_INSUFFICIENT_RESOURCES;
855
856 RtlInitUnicodeString
857 (&EnumKeyName, CCS_ROOT L"\\Control\\Class\\" TCPIP_GUID);
858
859 Status = OpenRegistryKey( &EnumKeyName, &EnumKey );
860
861 if( !NT_SUCCESS(Status) ) {
862 TI_DbgPrint(DEBUG_DATALINK,("Couldn't open Enum key %wZ: %x\n",
863 &EnumKeyName, Status));
864 ExFreePool( Kbio );
865 return Status;
866 }
867
868 for( i = 0; NT_SUCCESS(Status); i++ ) {
869 Status = ZwEnumerateKey( EnumKey, i, KeyBasicInformation,
870 Kbio, KbioLength, &ResultLength );
871
872 if( Status == STATUS_BUFFER_TOO_SMALL || Status == STATUS_BUFFER_OVERFLOW ) {
873 ExFreePool( Kbio );
874 KbioLength = ResultLength;
875 Kbio = ExAllocatePool( NonPagedPool, KbioLength );
876 if( !Kbio ) {
877 TI_DbgPrint(DEBUG_DATALINK,("Failed to allocate memory\n"));
878 NtClose( EnumKey );
879 return STATUS_NO_MEMORY;
880 }
881
882 Status = ZwEnumerateKey( EnumKey, i, KeyBasicInformation,
883 Kbio, KbioLength, &ResultLength );
884
885 if( !NT_SUCCESS(Status) ) {
886 TI_DbgPrint(DEBUG_DATALINK,("Couldn't enum key child %d\n", i));
887 NtClose( EnumKey );
888 ExFreePool( Kbio );
889 return Status;
890 }
891 }
892
893 if( NT_SUCCESS(Status) ) {
894 TargetKeyName.Length = TargetKeyName.MaximumLength =
895 Kbio->NameLength;
896 TargetKeyName.Buffer = Kbio->Name;
897
898 Status = CheckForDeviceDesc
899 ( &EnumKeyName, &TargetKeyName, Name, DeviceDesc );
900 if( NT_SUCCESS(Status) ) {
901 NtClose( EnumKey );
902 ExFreePool( Kbio );
903 return Status;
904 } else Status = STATUS_SUCCESS;
905 }
906 }
907
908 NtClose( EnumKey );
909 ExFreePool( Kbio );
910 return STATUS_UNSUCCESSFUL;
911 }
912
913 VOID GetName( PUNICODE_STRING RegistryKey,
914 PUNICODE_STRING OutName ) {
915 PWCHAR Ptr;
916 UNICODE_STRING PartialRegistryKey;
917
918 PartialRegistryKey.Buffer =
919 RegistryKey->Buffer + wcslen(CCS_ROOT L"\\Services\\");
920 Ptr = PartialRegistryKey.Buffer;
921
922 while( *Ptr != L'\\' &&
923 ((PCHAR)Ptr) < ((PCHAR)RegistryKey->Buffer) + RegistryKey->Length )
924 Ptr++;
925
926 PartialRegistryKey.Length = PartialRegistryKey.MaximumLength =
927 (Ptr - PartialRegistryKey.Buffer) * sizeof(WCHAR);
928
929 RtlInitUnicodeString( OutName, L"" );
930 AppendUnicodeString( OutName, &PartialRegistryKey, FALSE );
931 }
932
933 BOOLEAN BindAdapter(
934 PLAN_ADAPTER Adapter,
935 PNDIS_STRING RegistryPath)
936 /*
937 * FUNCTION: Binds a LAN adapter to IP layer
938 * ARGUMENTS:
939 * Adapter = Pointer to LAN_ADAPTER structure
940 * NOTES:
941 * We set the lookahead buffer size, set the packet filter and
942 * bind the adapter to IP layer
943 */
944 {
945 PIP_INTERFACE IF;
946 NDIS_STATUS NdisStatus;
947 LLIP_BIND_INFO BindInfo;
948 IP_ADDRESS DefaultMask;
949 ULONG Lookahead = LOOKAHEAD_SIZE;
950 NTSTATUS Status;
951
952 TI_DbgPrint(DEBUG_DATALINK, ("Called.\n"));
953
954 Adapter->State = LAN_STATE_OPENING;
955
956 NdisStatus = NDISCall(Adapter,
957 NdisRequestSetInformation,
958 OID_GEN_CURRENT_LOOKAHEAD,
959 &Lookahead,
960 sizeof(ULONG));
961 if (NdisStatus != NDIS_STATUS_SUCCESS) {
962 TI_DbgPrint(DEBUG_DATALINK, ("Could not set lookahead buffer size (0x%X).\n", NdisStatus));
963 return FALSE;
964 }
965
966 /* Bind the adapter to IP layer */
967 BindInfo.Context = Adapter;
968 BindInfo.HeaderSize = Adapter->HeaderSize;
969 BindInfo.MinFrameSize = Adapter->MinFrameSize;
970 BindInfo.MTU = Adapter->MTU;
971 BindInfo.Address = (PUCHAR)&Adapter->HWAddress;
972 BindInfo.AddressLength = Adapter->HWAddressLength;
973 BindInfo.Transmit = LANTransmit;
974
975 IF = IPCreateInterface(&BindInfo);
976
977 if (!IF) {
978 TI_DbgPrint(MIN_TRACE, ("Insufficient resources.\n"));
979 return FALSE;
980 }
981
982 /*
983 * Query per-adapter configuration from the registry
984 * In case anyone is curious: there *is* an Ndis configuration api
985 * for this sort of thing, but it doesn't really support things like
986 * REG_MULTI_SZ very well, and there is a note in the DDK that says that
987 * protocol drivers developed for win2k and above just use the native
988 * services (ZwOpenKey, etc).
989 */
990
991 GetName( RegistryPath, &IF->Name );
992
993 Status = FindDeviceDescForAdapter( &IF->Name, &IF->Description );
994
995 TI_DbgPrint(DEBUG_DATALINK,("Adapter Description: %wZ\n",
996 &IF->Description));
997
998 AddrInitIPv4(&DefaultMask, 0);
999
1000 IF->Unicast = DefaultMask;
1001 IF->Netmask = DefaultMask;
1002
1003 IF->Broadcast.Type = IP_ADDRESS_V4;
1004 IF->Broadcast.Address.IPv4Address =
1005 IF->Unicast.Address.IPv4Address |
1006 ~IF->Netmask.Address.IPv4Address;
1007
1008 TI_DbgPrint(DEBUG_DATALINK,("BCAST(IF) %s\n", A2S(&IF->Broadcast)));
1009
1010 /* Get maximum link speed */
1011 NdisStatus = NDISCall(Adapter,
1012 NdisRequestQueryInformation,
1013 OID_GEN_LINK_SPEED,
1014 &IF->Speed,
1015 sizeof(UINT));
1016
1017 if( !NT_SUCCESS(NdisStatus) )
1018 IF->Speed = IP_DEFAULT_LINK_SPEED;
1019
1020 /* Register interface with IP layer */
1021 IPRegisterInterface(IF);
1022
1023 /* Set packet filter so we can send and receive packets */
1024 NdisStatus = NDISCall(Adapter,
1025 NdisRequestSetInformation,
1026 OID_GEN_CURRENT_PACKET_FILTER,
1027 &Adapter->PacketFilter,
1028 sizeof(UINT));
1029
1030 if (NdisStatus != NDIS_STATUS_SUCCESS) {
1031 TI_DbgPrint(DEBUG_DATALINK, ("Could not set packet filter (0x%X).\n", NdisStatus));
1032 IPUnregisterInterface(IF);
1033 IPDestroyInterface(IF);
1034 return FALSE;
1035 }
1036
1037 Adapter->Context = IF;
1038 Adapter->State = LAN_STATE_STARTED;
1039 return TRUE;
1040 }
1041
1042
1043 VOID UnbindAdapter(
1044 PLAN_ADAPTER Adapter)
1045 /*
1046 * FUNCTION: Unbinds a LAN adapter from IP layer
1047 * ARGUMENTS:
1048 * Adapter = Pointer to LAN_ADAPTER structure
1049 */
1050 {
1051 TI_DbgPrint(DEBUG_DATALINK, ("Called.\n"));
1052
1053 if (Adapter->State == LAN_STATE_STARTED) {
1054 PIP_INTERFACE IF = Adapter->Context;
1055
1056 IPUnregisterInterface(IF);
1057
1058 IPDestroyInterface(IF);
1059 }
1060 }
1061
1062
1063 NDIS_STATUS LANRegisterAdapter(
1064 PNDIS_STRING AdapterName,
1065 PNDIS_STRING RegistryPath)
1066 /*
1067 * FUNCTION: Registers protocol with an NDIS adapter
1068 * ARGUMENTS:
1069 * AdapterName = Pointer to string with name of adapter to register
1070 * Adapter = Address of pointer to a LAN_ADAPTER structure
1071 * RETURNS:
1072 * Status of operation
1073 */
1074 {
1075 PLAN_ADAPTER IF;
1076 NDIS_STATUS NdisStatus;
1077 NDIS_STATUS OpenStatus;
1078 UINT MediaIndex;
1079 NDIS_MEDIUM MediaArray[MAX_MEDIA];
1080 UINT AddressOID;
1081 UINT Speed;
1082
1083 TI_DbgPrint(DEBUG_DATALINK, ("Called.\n"));
1084
1085 IF = exAllocatePool(NonPagedPool, sizeof(LAN_ADAPTER));
1086 if (!IF) {
1087 TI_DbgPrint(MIN_TRACE, ("Insufficient resources.\n"));
1088 return NDIS_STATUS_RESOURCES;
1089 }
1090
1091 RtlZeroMemory(IF, sizeof(LAN_ADAPTER));
1092
1093 /* Put adapter in stopped state */
1094 IF->State = LAN_STATE_STOPPED;
1095
1096 /* Initialize protecting spin lock */
1097 KeInitializeSpinLock(&IF->Lock);
1098
1099 KeInitializeEvent(&IF->Event, SynchronizationEvent, FALSE);
1100
1101 /* Initialize array with media IDs we support */
1102 MediaArray[MEDIA_ETH] = NdisMedium802_3;
1103
1104 TI_DbgPrint(DEBUG_DATALINK,("opening adapter %wZ\n", AdapterName));
1105 /* Open the adapter. */
1106 NdisOpenAdapter(&NdisStatus,
1107 &OpenStatus,
1108 &IF->NdisHandle,
1109 &MediaIndex,
1110 MediaArray,
1111 MAX_MEDIA,
1112 NdisProtocolHandle,
1113 IF,
1114 AdapterName,
1115 0,
1116 NULL);
1117
1118 /* Wait until the adapter is opened */
1119 if (NdisStatus == NDIS_STATUS_PENDING)
1120 KeWaitForSingleObject(&IF->Event, UserRequest, KernelMode, FALSE, NULL);
1121 else if (NdisStatus != NDIS_STATUS_SUCCESS) {
1122 TI_DbgPrint(DEBUG_DATALINK,("denying adapter %wZ\n", AdapterName));
1123 exFreePool(IF);
1124 return NdisStatus;
1125 }
1126
1127 IF->Media = MediaArray[MediaIndex];
1128
1129 /* Fill LAN_ADAPTER structure with some adapter specific information */
1130 switch (IF->Media) {
1131 case NdisMedium802_3:
1132 IF->HWAddressLength = IEEE_802_ADDR_LENGTH;
1133 IF->BCastMask = BCAST_ETH_MASK;
1134 IF->BCastCheck = BCAST_ETH_CHECK;
1135 IF->BCastOffset = BCAST_ETH_OFFSET;
1136 IF->HeaderSize = sizeof(ETH_HEADER);
1137 IF->MinFrameSize = 60;
1138 AddressOID = OID_802_3_CURRENT_ADDRESS;
1139 IF->PacketFilter =
1140 NDIS_PACKET_TYPE_BROADCAST |
1141 NDIS_PACKET_TYPE_DIRECTED |
1142 NDIS_PACKET_TYPE_MULTICAST;
1143 break;
1144
1145 default:
1146 /* Unsupported media */
1147 TI_DbgPrint(MIN_TRACE, ("Unsupported media.\n"));
1148 exFreePool(IF);
1149 return NDIS_STATUS_NOT_SUPPORTED;
1150 }
1151
1152 /* Get maximum frame size */
1153 NdisStatus = NDISCall(IF,
1154 NdisRequestQueryInformation,
1155 OID_GEN_MAXIMUM_FRAME_SIZE,
1156 &IF->MTU,
1157 sizeof(UINT));
1158 if (NdisStatus != NDIS_STATUS_SUCCESS) {
1159 TI_DbgPrint(DEBUG_DATALINK,("denying adapter %wZ (NDISCall)\n", AdapterName));
1160 exFreePool(IF);
1161 return NdisStatus;
1162 }
1163
1164 /* Get maximum packet size */
1165 NdisStatus = NDISCall(IF,
1166 NdisRequestQueryInformation,
1167 OID_GEN_MAXIMUM_TOTAL_SIZE,
1168 &IF->MaxPacketSize,
1169 sizeof(UINT));
1170 if (NdisStatus != NDIS_STATUS_SUCCESS) {
1171 TI_DbgPrint(MIN_TRACE, ("Query for maximum packet size failed.\n"));
1172 exFreePool(IF);
1173 return NdisStatus;
1174 }
1175
1176 /* Get maximum number of packets we can pass to NdisSend(Packets) at one time */
1177 NdisStatus = NDISCall(IF,
1178 NdisRequestQueryInformation,
1179 OID_GEN_MAXIMUM_SEND_PACKETS,
1180 &IF->MaxSendPackets,
1181 sizeof(UINT));
1182 if (NdisStatus != NDIS_STATUS_SUCCESS)
1183 /* Legacy NIC drivers may not support this query, if it fails we
1184 assume it can send at least one packet per call to NdisSend(Packets) */
1185 IF->MaxSendPackets = 1;
1186
1187 /* Get current hardware address */
1188 NdisStatus = NDISCall(IF,
1189 NdisRequestQueryInformation,
1190 AddressOID,
1191 &IF->HWAddress,
1192 IF->HWAddressLength);
1193 if (NdisStatus != NDIS_STATUS_SUCCESS) {
1194 TI_DbgPrint(MIN_TRACE, ("Query for current hardware address failed.\n"));
1195 exFreePool(IF);
1196 return NdisStatus;
1197 }
1198
1199 /* Get maximum link speed */
1200 NdisStatus = NDISCall(IF,
1201 NdisRequestQueryInformation,
1202 OID_GEN_LINK_SPEED,
1203 &Speed,
1204 sizeof(UINT));
1205 if (NdisStatus != NDIS_STATUS_SUCCESS) {
1206 TI_DbgPrint(MIN_TRACE, ("Query for maximum link speed failed.\n"));
1207 exFreePool(IF);
1208 return NdisStatus;
1209 }
1210
1211 /* Convert returned link speed to bps (it is in 100bps increments) */
1212 IF->Speed = Speed * 100L;
1213
1214 /* Bind adapter to IP layer */
1215 if( !BindAdapter(IF, RegistryPath) ) {
1216 TI_DbgPrint(DEBUG_DATALINK,("denying adapter %wZ (BindAdapter)\n", AdapterName));
1217 exFreePool(IF);
1218 return NDIS_STATUS_NOT_ACCEPTED;
1219 }
1220
1221 /* Add adapter to the adapter list */
1222 ExInterlockedInsertTailList(&AdapterListHead,
1223 &IF->ListEntry,
1224 &AdapterListLock);
1225
1226 TI_DbgPrint(DEBUG_DATALINK, ("Leaving.\n"));
1227
1228 return NDIS_STATUS_SUCCESS;
1229 }
1230
1231
1232 NDIS_STATUS LANUnregisterAdapter(
1233 PLAN_ADAPTER Adapter)
1234 /*
1235 * FUNCTION: Unregisters protocol with NDIS adapter
1236 * ARGUMENTS:
1237 * Adapter = Pointer to a LAN_ADAPTER structure
1238 * RETURNS:
1239 * Status of operation
1240 */
1241 {
1242 KIRQL OldIrql;
1243 NDIS_HANDLE NdisHandle;
1244 NDIS_STATUS NdisStatus = NDIS_STATUS_SUCCESS;
1245
1246 TI_DbgPrint(DEBUG_DATALINK, ("Called.\n"));
1247
1248 /* Unlink the adapter from the list */
1249 RemoveEntryList(&Adapter->ListEntry);
1250
1251 /* Unbind adapter from IP layer */
1252 UnbindAdapter(Adapter);
1253
1254 TcpipAcquireSpinLock(&Adapter->Lock, &OldIrql);
1255 NdisHandle = Adapter->NdisHandle;
1256 if (NdisHandle) {
1257 Adapter->NdisHandle = NULL;
1258 TcpipReleaseSpinLock(&Adapter->Lock, OldIrql);
1259
1260 NdisCloseAdapter(&NdisStatus, NdisHandle);
1261 if (NdisStatus == NDIS_STATUS_PENDING) {
1262 TcpipWaitForSingleObject(&Adapter->Event,
1263 UserRequest,
1264 KernelMode,
1265 FALSE,
1266 NULL);
1267 NdisStatus = Adapter->NdisStatus;
1268 }
1269 } else
1270 TcpipReleaseSpinLock(&Adapter->Lock, OldIrql);
1271
1272 FreeAdapter(Adapter);
1273
1274 return NdisStatus;
1275 }
1276
1277 VOID
1278 NTAPI
1279 LANUnregisterProtocol(VOID)
1280 /*
1281 * FUNCTION: Unregisters this protocol driver with NDIS
1282 * NOTES: Does not care wether we are already registered
1283 */
1284 {
1285 TI_DbgPrint(DEBUG_DATALINK, ("Called.\n"));
1286
1287 if (ProtocolRegistered) {
1288 NDIS_STATUS NdisStatus;
1289 PLIST_ENTRY CurrentEntry;
1290 PLIST_ENTRY NextEntry;
1291 PLAN_ADAPTER Current;
1292 KIRQL OldIrql;
1293
1294 TcpipAcquireSpinLock(&AdapterListLock, &OldIrql);
1295
1296 /* Search the list and remove every adapter we find */
1297 CurrentEntry = AdapterListHead.Flink;
1298 while (CurrentEntry != &AdapterListHead) {
1299 NextEntry = CurrentEntry->Flink;
1300 Current = CONTAINING_RECORD(CurrentEntry, LAN_ADAPTER, ListEntry);
1301 /* Unregister it */
1302 LANUnregisterAdapter(Current);
1303 CurrentEntry = NextEntry;
1304 }
1305
1306 TcpipReleaseSpinLock(&AdapterListLock, OldIrql);
1307
1308 NdisDeregisterProtocol(&NdisStatus, NdisProtocolHandle);
1309 ProtocolRegistered = FALSE;
1310 }
1311 }
1312
1313 VOID
1314 NTAPI
1315 ProtocolUnbindAdapter(
1316 PNDIS_STATUS Status,
1317 NDIS_HANDLE ProtocolBindingContext,
1318 NDIS_HANDLE UnbindContext)
1319 {
1320 /* We don't pend any unbinding so we can just ignore UnbindContext */
1321 *Status = LANUnregisterAdapter((PLAN_ADAPTER)ProtocolBindingContext);
1322 }
1323
1324 NTSTATUS LANRegisterProtocol(
1325 PNDIS_STRING Name)
1326 /*
1327 * FUNCTION: Registers this protocol driver with NDIS
1328 * ARGUMENTS:
1329 * Name = Name of this protocol driver
1330 * RETURNS:
1331 * Status of operation
1332 */
1333 {
1334 NDIS_STATUS NdisStatus;
1335 NDIS_PROTOCOL_CHARACTERISTICS ProtChars;
1336
1337 TI_DbgPrint(DEBUG_DATALINK, ("Called.\n"));
1338
1339 InitializeListHead(&AdapterListHead);
1340 KeInitializeSpinLock(&AdapterListLock);
1341
1342 /* Set up protocol characteristics */
1343 RtlZeroMemory(&ProtChars, sizeof(NDIS_PROTOCOL_CHARACTERISTICS));
1344 ProtChars.MajorNdisVersion = NDIS_VERSION_MAJOR;
1345 ProtChars.MinorNdisVersion = NDIS_VERSION_MINOR;
1346 ProtChars.Name.Length = Name->Length;
1347 ProtChars.Name.Buffer = Name->Buffer;
1348 ProtChars.Name.MaximumLength = Name->MaximumLength;
1349 ProtChars.OpenAdapterCompleteHandler = ProtocolOpenAdapterComplete;
1350 ProtChars.CloseAdapterCompleteHandler = ProtocolCloseAdapterComplete;
1351 ProtChars.ResetCompleteHandler = ProtocolResetComplete;
1352 ProtChars.RequestCompleteHandler = ProtocolRequestComplete;
1353 ProtChars.SendCompleteHandler = ProtocolSendComplete;
1354 ProtChars.TransferDataCompleteHandler = ProtocolTransferDataComplete;
1355 ProtChars.ReceiveHandler = ProtocolReceive;
1356 ProtChars.ReceiveCompleteHandler = ProtocolReceiveComplete;
1357 ProtChars.StatusHandler = ProtocolStatus;
1358 ProtChars.StatusCompleteHandler = ProtocolStatusComplete;
1359 ProtChars.BindAdapterHandler = ProtocolBindAdapter;
1360 ProtChars.PnPEventHandler = ProtocolPnPEvent;
1361 ProtChars.UnbindAdapterHandler = ProtocolUnbindAdapter;
1362 ProtChars.UnloadHandler = LANUnregisterProtocol;
1363
1364 /* Try to register protocol */
1365 NdisRegisterProtocol(&NdisStatus,
1366 &NdisProtocolHandle,
1367 &ProtChars,
1368 sizeof(NDIS_PROTOCOL_CHARACTERISTICS));
1369 if (NdisStatus != NDIS_STATUS_SUCCESS)
1370 {
1371 TI_DbgPrint(DEBUG_DATALINK, ("NdisRegisterProtocol failed, status 0x%x\n", NdisStatus));
1372 return (NTSTATUS)NdisStatus;
1373 }
1374
1375 ProtocolRegistered = TRUE;
1376
1377 return STATUS_SUCCESS;
1378 }
1379
1380 /* EOF */